For example, if you have salt water with your oil you will want a sheath which is resistant to salt corrosion. When choosing electric heaters, the selection of sheathes or casings are very important. For example, approximately how much and what kind of water does it contain? You may need to have an engineer conduct a field trial to get the best results and highest efficiency from your new heat system. It is also important to consider the makeup of the oil you are using. If you have the efficiency information, you can better determine if half the heat or one third is required for your application. For example, if you are replacing a 40 kilowatt burner, you may need to use a 20 kilowatt or even a 16 kilowatt electric heater. Since electric heat is so much more efficient than gas, it is important to remember you will need far fewer BTUs of heat for your new heaters. This will depend on your needs and applications. When installing electric heat, you can use either direct or dry well type flange heaters. This can be done by taking out the fire tubing and replacing it with the right size flange heaters. In fact, some companies are retro-fitting with flange type immersion heaters. However, because electric heat is more efficient and is an eco friendly option, many companies are making the change. Heat can then take place from convection, conduction, and radiation, and the heating element stays protected the entire time.Ĭhanging over will require some modifications. In this way, the pipe and not the heating element is submerged in the oil. You can utilize an indirect system which contains a heating element inside of a pipe. However, you still want the same benefits of an immersion heating system. Suppose you do not want your heating elements to actually come in contact with the liquid. However, some types of liquids can be corrosive, so it is sometimes necessary to use an indirect heating method. As the element heats up it transfers all of its heat to the liquid so there is no heat loss taking place. This is an excellent way to provide constant and uniform heat. Immersion heat can be either direct or indirect.ĭirect heating is a method which employs heating elements actually submerged in the liquid they are heating. Instead of heating with fuel (which can produce uneven heat) electric heating elements can be placed directly into the liquid for a more uniform and even heating process. Immersion heating is one of the most efficient ways to heat liquid for improving viscosity. In fact, many companies are utilizing electric heat from immersion heaters because of the many benefits it provides. Not long ago, fuel fired burners provided adequate heat but this method comes with some drawbacks. This produces a need for effective water separation. New oil wells produce quality crude oil but in time, they may bring up a great deal of water with the oil. These systems not only produce enough heat, but offer exact temperature control for best results. ![]() As a result, the oil industry is turning to solutions provided by circulation and immersion heat systems. ![]() Yet, the right amount of heat is necessary as not enough can cause oil to be too thick and too much may actually damage it. For example, crude oil may need to be pumped for a long distance and heating is essential. This is especially important in oil pipelines. Process heating is an intricate part of the oil industry as it is important to keep petroleum products at the proper viscosity.
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